Hysteresis based vibration control of base-isolated structures

被引：3

作者：

Rodellar, Jose ^{[1
]}

Garcia, Guillem ^{[1
]}

Vidal, Yolanda ^{[1
]}

Acho, Leonardo ^{[1
]}

Pozo, Francesc ^{[1
]}

机构：

[1] UPC, EEBE, Dept Matemat, Control Dynam & Applicat CoDAlab, Campus Diagonal Besos,6-12, St Adria De Besos 08930, Barcelona, Spain

来源：

X INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS (EURODYN 2017) | 2017年 / 199卷

关键词：

hysteresis; base-isolated building; active control; rate limiter; HIGHWAY BRIDGE; BENCHMARK; MITIGATION; SYSTEM;

D O I：

10.1016/j.proeng.2017.09.090

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An active control strategy for base-isolated structures is proposed in this work. The key idea comes from the observation that passive base isolation systems are hysteretic. Thus, an hysteresis based vibration control is designed in a way that the control force is smooth and limited by a prescribed bound. A model of a three-story building is used to study and compare the efficacy of a passive pure friction damper alone, with the addition of the proposed active control. We introduce a rate limiter to the actuator to simulate its limited speed capacity, present in every physical actuator. Simulations demonstrate that our active control strategy significantly reduces base displacements and shears without an increase in drift or accelerations. (c) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：1798 / 1803

页数：6

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